On linux, I use a windows manager that lets me bind keys for "goto firefox" or "goto emacs". Or I use virtual desktops basically for the same thing. On my mac I can use Quicksilver for the same task. Some pre-defined, determined key combination that brings me directly where I want to go. Any task not in my day to day works with expose, or alt tab, etc. Often Quicksilver solves this task quicker than these methods anyway. No zooming over a list, or stack, or grid, or anything. The keyboard alone can already solve these tasks with the mouse providing extra support when needed. While the video was cool, I don't think it solves any issues that can't already be solved in a much easier fashion.